OS Is Linux.
The autoincrement key is defined as INT, so plenty of room there.
Table sizes are getting up there:
attempt.MYD 1,902,291,232 inrec.MYD 1,979,795,600
attempt.MYI 280,733,696 inrec.MYI 240,460,800
After doing a myisamchk -r on the attempt table, inserts appear to be
working again, so I would't think the huge file sizes are the problem (yet).
No recovery was done on the inrec table, but after doing a FLUSH-TABLE, an
insert worked on that table as well. Don't understand that one.
I still point back to the fact that 2 different tables had autoincrement
problems at virtually the same time. And this is the only app running on
this system. Why did MySql decide these 2 keys already exist when in fact
they don't?
>From: Gerald Clark <[EMAIL PROTECTED]>
>To: Dan Shapella <[EMAIL PROTECTED]>
>CC: [EMAIL PROTECTED]
>Subject: Re: duplicate key error on autoincrement field while inserting
>Date: Tue, 24 Apr 2001 13:08:47 -0500
>
>What operating system are you running, and how big are these files and
>indicies?
>
>Is this a 2 Gig file size limit problem?
>
>You are getting near the limit to the size of an unsigned mediumint.
>
>
>Dan Shapella wrote:
> >
> > I have a weird one here.
> >
> > I have an application that inserts records into one of 2 different
>tables.
> > The other day, an insert attempt on one of the tables failed with a
> > duplicate key error on key 1, an autoincrement field. About a minute
>later,
> > an insert attempt on the other table failed similarly. But, when a
>SELECT
> > was done on each table for the key value in question, no record was
>found.
> >
> > The autoincrement values in question were 16288908 for the first table,
>and
> > 11339940 for the second table. These tables handle thousands of inserts
>per
> > day, and all other table activity is read-only via SELECT statements.
> >
> > Does anyone have any idea what may have caused this and what can be done
>to
> > prevent it? It is as if MySQL built the record with key value 16288908,
> > placed it in the table cache, built another record with the same key,
>tried
> > to place that in the table cache and failed, reported the error, and
>then
> > deleted the record from the table cache before it was written into the
> > actual table.
> >
> > I did a "myisamchk -i" on the first table, which generated the
>following:
> >
> > Checking MyISAM file: attempt.MYI
> > Data records: 16288907 Deleted blocks: 0
> > /usr/local/bin/myisamchk: warning: Table is marked as crashed
> > /usr/local/bin/myisamchk: warning: 1 clients is using or hasn't closed
>the
> > table properly
> > - check file-size
> > - check key delete-chain
> > - check record delete-chain
> > - check index reference
> > - check data record references index: 1
> > /usr/local/bin/myisamchk: error: Found key at page 280732672 that points
>to
> > record outside datafile
> > - check record links
> > /usr/local/bin/myisamchk: error: Checksum for key: 1 doesn't match
>checksum
> > for records
> > /usr/local/bin/myisamchk: error: Checksum for key: 2 doesn't match
>checksum
> > for records
> >
> > Record blocks: 16288907 Delete blocks: 0
> > Record data: 1829202488 Deleted data: 0
> > Lost space: 12006835 Linkdata: 61081997
> > MyISAM-table 'attempt.MYI' is corrupted
> > Fix it using switch "-r" or "-o"
> >
> > Any suggestions would be greatly appreciated. Thanks!
> >
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